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How to Install systemd-resolve on Ubuntu

Introduction

Systemd-resolve is a command-line tool used for system-wide DNS resolution settings on Linux systems. It is part of the systemd suite and provides a convenient way to manage DNS configurations. By using systemd-resolve, users can easily set up DNS servers, manage DNS caching, and troubleshoot DNS-related issues on their Ubuntu systems.

Installation

To install systemd-resolve on Ubuntu, follow these steps:

  1. Open a terminal window by pressing Ctrl + Alt + T on your keyboard.
  2. Update the package repository index by running the following command:
    sudo apt update
    
  3. Install the systemd-resolve package by executing the command:
    sudo apt install systemd-resolved
    
  4. Once the installation is complete, you can start using systemd-resolve to manage your DNS settings.

Usage

After installing systemd-resolve, you can use it to configure DNS settings, flush DNS caches, and perform DNS lookups. Here are some common commands you can use:

  • To display current DNS configuration:

    systemd-resolve --status
    
  • To flush the DNS cache:

    sudo systemd-resolve --flush-caches
    
  • To perform a DNS lookup for a specific domain:

    systemd-resolve example.com
    

Explore more options and functionalities of systemd-resolve by checking out the official documentation or using the man pages.

Conclusion

In this tutorial, we have learned how to install and use systemd-resolve on Ubuntu. This powerful tool simplifies DNS management and troubleshooting tasks, making it easier for users to configure and monitor DNS settings on their systems.


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